WO2008062696A1 - Dispositif de sortie de puissance, véhicule automobile équipé d'un dispositif de sortie de puissance et procédé de commande du dispositif de sortie de puissance - Google Patents

Dispositif de sortie de puissance, véhicule automobile équipé d'un dispositif de sortie de puissance et procédé de commande du dispositif de sortie de puissance Download PDF

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Publication number
WO2008062696A1
WO2008062696A1 PCT/JP2007/072064 JP2007072064W WO2008062696A1 WO 2008062696 A1 WO2008062696 A1 WO 2008062696A1 JP 2007072064 W JP2007072064 W JP 2007072064W WO 2008062696 A1 WO2008062696 A1 WO 2008062696A1
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WO
WIPO (PCT)
Prior art keywords
power
motor
gear
shaft
drive shaft
Prior art date
Application number
PCT/JP2007/072064
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Katsuta
Hidehiro Oba
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Priority to AT07831794T priority Critical patent/ATE527150T1/de
Priority to EP07831794A priority patent/EP2088045B1/fr
Priority to US12/515,881 priority patent/US7931102B2/en
Priority to CN2007800435092A priority patent/CN101541611B/zh
Publication of WO2008062696A1 publication Critical patent/WO2008062696A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/10—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for automatic control superimposed on human control to limit the acceleration of the vehicle, e.g. to prevent excessive motor current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B60W10/113—Stepped gearings with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B60W10/115—Stepped gearings with planetary gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/08—Electric propulsion units
    • B60W2510/083—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the present invention relates to a power output device, an automobile equipped with the same, and a method for controlling the power output device.
  • the present invention relates to a power output device that outputs power to a drive shaft, an automobile equipped with the same, and a control method for the power output device.
  • Patent Document 1 JP 2005-155891 A
  • Patent Document 2 Japanese Patent Laid-Open No. 2003-106389
  • the power output device described in each of the above patent documents can stop the internal combustion engine and can transmit the power output by one electric motor to the output shaft after being shifted by the transmission. To do. However, it is difficult to obtain a relatively large torque continuously using only one motor from the viewpoint of heat generation and efficiency of the motor.
  • the present invention provides a power output device including two electric motors and a transmission transmission means, and connects both of the two electric motors to the drive shaft by the transmission transmission means to generate a relatively large torque.
  • One of the purposes is to obtain continuously.
  • Another object of the present invention is to more appropriately control the two electric motors when both the two electric motors are connected to the drive shaft by the transmission mechanism.
  • a power output apparatus is a power output apparatus that outputs power to a drive shaft, and a first electric motor capable of inputting and outputting power;
  • a second electric motor that can input and output power
  • Power storage means capable of exchanging electric power with each of the first and second motors, and selectively connecting one or both of the rotation shaft of the first motor and the rotation shaft of the second motor to the drive shaft
  • Shift transmission means capable of transmitting the power from the first motor and the power from the second motor to the drive shaft at a predetermined speed ratio, respectively
  • control means provides the first and second motors with a minimum sum of the loss of the first motor and the loss of the second motor based on the set required power.
  • the target power to be output may be set. If the target power to be output to the first and second motors is set in this manner, the heat generation of the first motor and the heat generation of the second motor can be made comparable.
  • the power output apparatus includes an internal combustion engine, a first element connected to the rotation shaft of the first electric motor, a second element connected to the rotation shaft of the second electric motor, and the internal combustion engine.
  • a third element connected to the engine shaft, and a power distribution and integration mechanism configured such that these three elements can differentially rotate with each other; a connection between the first motor and the first element; (2) Connection / disconnection means capable of executing drive source element connection and release of the drive source element connection which are any of connection between the electric motor and the second element and connection between the internal combustion engine and the third element.
  • the drive source element connection by the connection / disconnection means is released and the internal combustion engine is connected.
  • the engine may be stopped.
  • this power output device the state where the power is output to the drive shaft along with the operation of the internal combustion engine and the power from at least one of the first and second motors is driven by the transmission unit. It is possible to further improve the energy efficiency, the power transmission efficiency, and the like by appropriately switching the state of traveling by transmitting to the shaft.
  • An automobile according to the present invention comprises:
  • An automobile including drive wheels driven by power from a drive shaft
  • a first electric motor that can input and output power
  • a second electric motor that can input and output power
  • Power storage means capable of exchanging electric power with each of the first and second motors, and selectively connecting one or both of the rotation shaft of the first motor and the rotation shaft of the second motor to the drive shaft
  • Shift transmission means capable of transmitting the power from the first motor and the power from the second motor to the drive shaft at a predetermined speed ratio, respectively
  • the method for controlling the power output apparatus can exchange power with the drive shaft, the first motor and the second motor each capable of inputting and outputting power, and each of the first and second motors.
  • Power storage means, one or both of the rotating shaft of the first electric motor and the rotating shaft of the second electric motor can be selectively connected to the drive shaft, and the power from the first electric motor
  • a control method for a power output device comprising: transmission transmission means capable of transmitting power from the second electric motor to the drive shaft at a predetermined speed ratio, respectively.
  • the shift transmission means connects both the first and second motors to the drive shaft, and (b) the heat generated by the first motor and the heat generated by the second motor become approximately the same and the drive
  • the first and second electric motors are controlled such that power based on required power required for the shaft is output to the drive shaft.
  • step (b) is to output the first and second motors based on the required power so that the sum of the loss of the first motor and the loss of the second motor is minimized. Even if you set the standard power.
  • the power output device includes an internal combustion engine, a first element connected to a rotating shaft of the first electric motor, a second element connected to a rotating shaft of the second electric motor, and the engine of the internal combustion engine.
  • a power distribution and integration mechanism having a third element connected to the shaft and configured so that these three elements can differentially rotate with each other; a connection between the first motor and the first element; and the second motor.
  • a connection / disconnection means capable of executing drive source element connection and release of the drive source element connection, which are any one of a connection between the first element and the second element and a connection between the internal combustion engine and the third element.
  • the driving by the connection / disconnection means is performed.
  • the internal combustion engine may be stopped while releasing the source element connection.
  • FIG. 1 is a schematic configuration diagram of a hybrid vehicle 20 according to an embodiment of the present invention.
  • FIG. 2 When the hybrid vehicle 20 of the embodiment travels with the operation of the engine 22, the power distribution and integration mechanism 40 and the transmission 60 of the transmission 60 are changed when the shift state of the transmission 60 is changed according to the change of the vehicle speed. It is explanatory drawing which illustrates the relationship between the rotation speed and torque of a main element.
  • FIG. 3 is an explanatory view similar to FIG.
  • FIG. 4 is an explanatory view similar to FIG.
  • FIG. 5 is an explanatory view similar to FIG.
  • FIG. 6 is an explanatory view similar to FIG.
  • FIG. 7 is an explanatory view similar to FIG.
  • FIG. 8 is an explanatory view similar to FIG.
  • FIG. 9 Co-represents the relationship between the rotational speed and torque of each element of the power distribution and integration mechanism 40 and each element of the reduction gear mechanism 50 when the motor MG1 functions as a generator and the motor MG2 functions as an electric motor. It is explanatory drawing which shows an example of a diagram.
  • FIG. 10 Co-represents the relationship between the number of rotations and torque in each element of the power distribution and integration mechanism 40 and each element of the reduction gear mechanism 50 when the motor MG2 functions as a generator and the motor MG1 functions as an electric motor. It is explanatory drawing which shows an example of a diagram.
  • FIG. 11 is an explanatory diagram for explaining a motor travel mode in the hybrid vehicle 20 of the embodiment.
  • FIG. 12 is a flowchart showing an example of a two-motor driving control routine executed by the hybrid ECU 70 when the two-motor driving mode is selected in the hybrid vehicle 20 of the embodiment.
  • FIG. 13 is an explanatory diagram showing an example of a temporary motor torque setting map.
  • FIG. 14 is a schematic configuration diagram showing another transmission 100 applicable to the hybrid vehicle 20 of the embodiment.
  • FIG. 15 is a schematic diagram showing another transmission 200 applicable to the hybrid vehicle 20 of the embodiment. It is a chart.
  • FIG. 16 is a schematic configuration diagram of a hybrid vehicle 20A according to a modification.
  • FIG. 1 is a schematic configuration diagram of a hybrid vehicle 20 according to an embodiment of the present invention.
  • the hybrid vehicle 20 shown in the figure is configured as a rear-wheel drive vehicle, and includes an engine 22 disposed at the front of the vehicle and a dynamic power distribution and integration mechanism connected to a crankshaft 26 that is an output shaft of the engine 22 ( (Differential rotation mechanism) 40, a motor MG1 capable of generating electricity connected to the power distribution and integration mechanism 40, and the motor MG1 and the motor MG1 are arranged coaxially and connected to the power distribution and integration mechanism 40 via the reduction gear mechanism 50.
  • (Differential rotation mechanism) 40 a motor MG1 capable of generating electricity connected to the power distribution and integration mechanism 40
  • the motor MG1 and the motor MG1 are arranged coaxially and connected to the power distribution and integration mechanism 40 via the reduction gear mechanism 50.
  • a motor MG2 capable of generating electricity
  • a transmission 60 that can shift the power from the power distribution and integration mechanism 40 and transmit it to the drive shaft 67
  • a hybrid electronic control unit hereinafter referred to as “the hybrid vehicle 20”.
  • the engine 22 is an internal combustion engine that outputs power by being supplied with hydrocarbon fuels such as gasoline and light oil.
  • the engine control unit 24 (hereinafter referred to as "engine ECU") 24 Control of ignition timing, intake air volume, etc.
  • the engine ECU 24 receives signals from various sensors that are provided for the engine 22 and detect the operating state of the engine 22.
  • the engine ECU 24 communicates with the hybrid ECU 70 and controls the operation of the engine 22 based on the control signal from the hybrid ECU 70, the signal from the sensor, and the like, and data on the operation state of the engine 22 as necessary. Output to hybrid ECU70.
  • the motor MG1 and the motor MG2 are both synchronous generator motors of the same specifications that operate as a generator and operate as an electric motor, and are connected to a battery 35, which is a secondary battery, via inverters 31 and 32. Fi exchange power.
  • a power line 39 connecting the inverters 31 and 32 and the notch 35 is configured as a positive and negative bus shared by the inverters 31 and 32, and is generated by one of the motors MG1 and MG2. Power can be consumed by the other motor. Therefore, the notch 35 is charged / discharged by the electric power generated by the motor MG1 or MG2 or the insufficient electric power, and the motor M If the balance of electric power is balanced by Gl and MG2, charging and discharging will not occur.
  • the motors MG1 and MG2 are both driven and controlled by a motor electronic control unit (hereinafter referred to as “motor ECU”) 30.
  • the motor ECU 30 includes signals necessary for driving and controlling the motors MG1 and MG2, such as signals from rotational position detection sensors 33 and 34 that detect the rotational positions of the rotors of the motors MG1 and MG2, and currents (not shown).
  • a phase current applied to the motors MG1 and MG2 detected by the sensor is input, and a switching control signal to the inverters 31 and 32 is output from the motor ECU30.
  • the motor ECU 30 executes a rotation speed calculation routine (not shown) based on signals input from the rotation position detection sensors 33 and 34, and calculates the rotation speeds Nml and Nm2 of the rotors of the motors MG1 and MG2.
  • the motor ECU 30 communicates with the hybrid ECU 70, and drives and controls the motors MG1 and MG2 based on control signals from the hybrid ECU 70, and data on the operating state of the motors MG1 and MG2 as necessary. Output to.
  • the battery 35 is managed by a battery electronic control unit (hereinafter referred to as “battery ECU”) 36.
  • the battery ECU 36 has signals necessary for managing the battery 35, for example, the voltage between terminals from a voltage sensor (not shown) installed between the terminals of the battery 35, and the power connected to the output terminal of the battery 35.
  • a charge / discharge current from a current sensor (not shown) attached to the line 39, a battery temperature Tb from a temperature sensor 37 attached to the battery 35, and the like are input.
  • the battery ECU 36 outputs data on the state of the battery 35 to the hybrid ECU 70 and the engine ECU 24 by communication as necessary. Further, the notch ECU 36 calculates the remaining capacity SOC based on the integrated value of the charging / discharging current detected by the current sensor in order to manage the battery 35.
  • the power distribution and integration mechanism 40 is housed in a transmission case (not shown) together with the motors MG1, MG2, the reduction gear mechanism 50, and the transmission 60, and is arranged coaxially with the crankshaft 26 at a predetermined distance from the engine 22.
  • the power distribution and integration mechanism 40 of the embodiment includes a sun gear 41 of an external gear, a ring gear 42 of an internal gear arranged concentrically with the sun gear 41, and one of them is a sun gear 41 and the other is a ring gear.
  • 42 is a double pinion type planetary gear mechanism having a carrier 45 that holds at least one set of two pinion gears 43, 44 that rotate and revolve freely.
  • the sun gear 41 (second element) and the ring gear 42 (third element) and carrier 45 (first element) can be differentially rotated with respect to each other.
  • the power distribution and integration mechanism 40 is configured such that the gear ratio p (the value obtained by dividing the number of teeth of the sun gear 41 by the number of teeth of the ring gear 42) is p ⁇ 0.5.
  • the sun gear 41 which is the second element of the power distribution and integration mechanism 40, is connected via a hollow sun gear shaft 41a and a hollow first motor shaft 46 extending from the sun gear 41 to the side opposite to the engine 22 (rear of the vehicle).
  • the motor MG1 (hollow rotor) as the second electric motor is connected.
  • the carrier 45 which is the first element, has a reduction gear mechanism 50 disposed between the power distribution and integration mechanism 40 and the engine 22 and a hollow that extends toward the engine 22 and the reduction gear mechanism 50 (sun gear 51).
  • a motor MG2 (hollow rotor) as a first electric motor is connected via the second motor shaft 55.
  • the crankshaft 26 of the engine 22 is connected to the ring gear 42 as the third element via a ring gear shaft 42a and a damper 28 extending through the second motor shaft 55 and the motor MG2.
  • the clutch CO connection / disconnection means between the sun gear shaft 41a and the first motor shaft 46 for connection (drive source element connection) and release of the connection.
  • the clutch CO meshes the dog fixed to the tip of the sun gear shaft 41a with the dog fixed to the tip of the first motor shaft 46 with less loss, and releases the mesh between the two.
  • It is configured as a dog clutch that can be driven, and is driven by an electric, electromagnetic or hydraulic actuator 88.
  • the function of the power distribution and integration mechanism 40 enables the engine 22 to be substantially disconnected from the motors MG1 and MG2 and the transmission 60.
  • the first motor shaft 46 that can be connected to the sun gear 41 of the power distribution and integration mechanism 40 via the clutch CO in this manner is further extended from the motor MG1 to the side opposite to the engine 22 (rear side of the vehicle) for shifting.
  • a carrier shaft (connection shaft) 45a extends from the carrier 45 of the power distribution and integration mechanism 40 through the hollow sun gear shaft 41a and the first motor shaft 46 on the opposite side of the engine 22 (rear of the vehicle).
  • the carrier shaft 45a is also connected to the transmission 60.
  • the power distribution and integration mechanism 40 has the motor MG1 and the motor MG1 arranged coaxially with each other. Between the motors MG2, the two motors MG1 and MG2 are arranged coaxially.
  • the engine 22 is arranged coaxially with the motor MG2 and faces the transmission 60 with the power distribution and integration mechanism 40 interposed therebetween.
  • the components of the power output device such as the engine 22, the motors MG1 and MG2, the power distribution and integration mechanism 40, and the transmission 60 are the engine 22, the motor MG2, and the reduction gear mechanism 50 from the front of the vehicle. ), Power distribution and integration mechanism 40, motor MG1, and speed changer 60 are arranged in this order.
  • the power output device can be made compact and suitable for the hybrid vehicle 20 that is excellent in mountability and mainly driven by driving the rear wheels.
  • the reduction gear mechanism 50 includes a sun gear 51 as an external gear, a ring gear 52 as an internal gear arranged concentrically with the sun gear 51, a plurality of pinion gears 53 that mesh with both the sun gear 51 and the ring gear 52, and a plurality of This is a single pinion type planetary gear mechanism that includes a carrier 54 that holds the pinion gear 53 in a freely rotating and revolving manner.
  • the sun gear 51 of the reduction gear mechanism 50 is connected to the rotor of the motor MG2 via the second motor shaft 55 described above. Further, the ring gear 52 of the reduction gear mechanism 50 is fixed to the carrier 45 of the power distribution and integration mechanism 40, whereby the reduction gear mechanism 50 is substantially integrated with the power distribution and integration mechanism 40.
  • the carrier 54 of the reduction gear mechanism 50 is fixed to the transmission case. Therefore, by the action of the reduction gear mechanism 50, the power from the motor MG2 is decelerated and inputted to the carrier 45 of the power distribution and integration mechanism 40, and the power from the carrier 45 is accelerated and inputted to the motor MG2. It will be.
  • the power distribution and integration mechanism 40 which is a double pinion planetary gear mechanism having a gear ratio p of less than 0.5, is adopted, the torque from the engine 22 to the carrier 45 compared to the sun gear 41 is reduced. The distribution ratio increases. Therefore, by arranging the reduction gear mechanism 50 between the carrier 45 of the power distribution and integration mechanism 40 and the motor MG2, it is possible to reduce the size of the motor MG2 and reduce its power loss.
  • the reduction gear mechanism 50 is disposed between the motor MG 2 and the power distribution integration mechanism 40 and integrated with the power distribution integration mechanism 40 as in the embodiment, the power output device can be made more compact. be able to.
  • the reduction gear mechanism 50 has a ratio p / (1 when the reduction ratio (the number of teeth of the sun gear 51 / the number of teeth of the ring gear 52) is p. — P) configured to be in the vicinity It is.
  • the specifications of the motors MG1 and MG2 can be made the same, so that the productivity of the hybrid vehicle 20 and the power output device can be improved and the cost can be reduced.
  • the transmission 60 is configured as a parallel-shaft automatic transmission capable of setting a shift state (speed ratio) in a plurality of stages, and includes a first counter drive gear 61a and a first counter drive gear 61a that form a first-speed gear train.
  • the first gear 61a of the first-speed gear train is rotatable about the carrier shaft 45a extended from the carrier 45, which is the first element of the power distribution and integration mechanism 40, and cannot move in the axial direction. And is always meshed with the first gear 61b fixed to the countershaft 65.
  • the third gear 63a of the third-speed gear train is also held on the carrier shaft 45a so as to be rotatable and non-movable in the axial direction, and is always meshed with the third gear 63b fixed to the counter shaft 65.
  • either the first gear 61a (l-speed gear train) or the third gear 63a (3-speed gear train) is placed on the carrier shaft 45a side (counter drive gear side) with respect to the carrier shaft 45a.
  • a clutch C1 is arranged that can be selectively fixed and can rotate (release) both the first gear 61a and the third gear 63a with respect to the carrier shaft 45a.
  • the clutch C1 is fixed to the dog fixed to the first gear 61a and the third gear 63a, for example, a dog held on the carrier shaft 45a so as not to be rotatable and movable in the axial direction. It is configured as a dog clutch that can be engaged with one of the received dogs with less!
  • gears 61a and 61b in the first gear train, gears 63a and 63b in the third gear train and clutch C1 are The first transmission mechanism of the transmission 60 is configured.
  • the second gear 62a of the second gear train is rotatable and axially moved to the first motor shaft 46 that can be connected to the sun gear 41, which is the second element of the power distribution and integration mechanism 40, via the clutch CO.
  • the second gear 62b fixed to the countershaft 65 is always engaged with the countershaft 65.
  • the fourth gear 64a of the 4-speed gear train is also held on the first motor shaft 46 so as to be rotatable and axially immovable, and is always meshed with the fourth gear 64b fixed to the counter shaft 65.
  • either the second gear 62a (second gear train) or the fourth gear 64a (fourth gear IJ) is connected to the first motor shaft 46 side (counter drive gear side).
  • the clutch C2 includes, for example, a dog fixed to the second gear 62a and a dog fixed to the fourth gear 64a.
  • One of these is configured as a dog clutch that can be engaged with each other with less loss and release the engagement between the two, and is driven by the above-described actuator 88.
  • the gears 62a and 62b of the second speed gear train, the gears 64a and 64b of the fourth speed gear train and the clutch C2 constitute a second speed change mechanism of the transmission 60.
  • the power transmitted from the carrier shaft 45a or the first motor shaft 46 to the countershaft 65 is transmitted to the drive shaft 67 through the gears 65b and 66a, and finally through the differential gear 68 to the drive wheel. Is output to the rear wheels 69a and 69b.
  • the gears 61a to 64a are connected to the carrier shaft 45a or the first motor shaft by the clutch CI and C2. It is possible to reduce the loss when fixing to 46.
  • the second speed change mechanism including a 4-speed gear train having a particularly small reduction ratio is idling before being fixed to the first motor shaft 46 by the clutch C2.
  • the rotational speed of the gear 64a is lower than the rotational speed of the corresponding gear 64b on the counter shaft 65 side. Therefore, if at least the clutch C2 is provided on the first motor shaft 46 side, the dog of the gear 64a and the first motor It is possible to engage the dog of the shaft 46 with less loss.
  • the clutch C1 is installed on the countershaft 65 side. May be.
  • the clutch C2 is disengaged, and the first gear 61a (first speed gear train) and the third gear 63a (third speed gear train) are operated by the clutch C1.
  • the power from the carrier shaft 45a is transmitted through the first gear 61a (first gear ⁇ IJ) or the third gear 63a (third gear train) and the counter shaft 65.
  • the clutch CO is engaged and the clutch C1 is disengaged, and either the second gear 62a (second gear train) or the fourth gear 64a (fourth gear train) is connected to the first motor shaft by the clutch C2.
  • first speed change state first speed
  • second speed change state second speed change state ( (2nd gear)
  • 3rd gear shift state 3rd gear
  • 4th gear shift when transmitting power using the 4th gear train.
  • the clutches CI and C2 are provided on the carrier shaft 45a and the first motor shaft 46 side, so that the gears 61a to 64a are connected to the carrier shaft 45a or the first shaft by the clutches C1 and C2. It is possible to reduce the loss when fixing to the motor shaft 46. That is, the force due to the ratio of the number of teeth in each gear train
  • the second speed change mechanism including a 4-speed gear train with a particularly small reduction ratio is idling before being fixed to the first motor shaft 46 by the clutch C2.
  • the clutch C2 may be provided on the countershaft 65 side for the first speed change mechanism including the first gear train having a large reduction ratio.
  • the hybrid ECU 70 is configured as a microprocessor centered on the CPU 72. In addition to the CPU 72, a ROM 74 that stores a processing program, a RAM 76 that temporarily stores data, an input / output port (not shown), and And a communication port.
  • the hybrid ECU 70 has a shift signal SP from the shift position sensor 82 that detects the ignition signal from the ignition switch (start switch) 80, the shift position SP that is the operating position of the shift lever 81, and the amount of depression of the accelerator pedal 83 Detect Accelerator opening position Acc from the accelerator pedal position sensor 84, brake pedal position sensor BP from the brake pedal position sensor 86 that detects the amount of depression of the brake pedal 85, and vehicle speed V from the vehicle speed sensor 87 are input via the input port.
  • the hybrid ECU 70 is connected to the engine ECU 24, the motor ECU 30, and the battery ECU 36 via a communication port, and exchanges various control signals and data with the engine ECU 24, the motor ECU 30, and the battery ECU 36. Yes. Further, the actuator 88 that drives the clutch CO and the clutches C1 and C2 of the transmission 60 is also controlled by the hybrid ECU 70.
  • the S-axis represents the rotation speed of the sun gear 41 of the power distribution / integration mechanism 40 (motor MG1, that is, the rotation speed Nml of the first motor shaft 46), and the R-axis represents the power distribution / integration mechanism 40.
  • the rotation speed of the ring gear 42 (the rotation speed Ne of the engine 22) is indicated, and the C axis indicates the rotation speed of the carrier 45 of the power distribution and integration mechanism 40 (the carrier shaft 45a and the ring gear 52 of the reduction gear mechanism 50).
  • the 61a axis to 64a axis, the 65th axis, and the 67th axis indicate the rotation speeds of the first gear 61a to the fourth gear 64a, the counter shaft 65, and the drive shaft 67 of the transmission 60, respectively.
  • the clutch C2 when traveling with the engagement of the clutch CO and the operation of the engine 22, the clutch C2 is released and the first gear 61a (first gear IJ) is engaged by the clutch C1. If fixed to the carrier shaft 45a, the power from the carrier shaft 45a is shifted (decelerated) based on the gear ratio of the first gear train (first gears 61a, 61b) to the drive shaft 67 as shown in FIG. And can output power. Further, as shown in FIG. 3, according to the change in the vehicle speed V, the clutch C2 is operated under the first speed change state in which the first gear 61a (first gear ⁇ IJ) is fixed to the carrier shaft 45a by the clutch C1.
  • the clutch C1 is disengaged under the 1st and 2nd gear simultaneous engagement state shown in FIG. 3, the second gear 62a (2nd gear gear 2) is caused by the clutch C2 as shown by a two-dot chain line in FIG. IJ) is fixed to the first motor shaft 46 (sun gear 41), and the power from the first motor shaft 46 is shifted based on the gear ratio of the second gear train (second gears 62a, 62b) to drive shaft Can output to 67. Further, according to the change of the vehicle speed V, as shown in FIG. 5, the clutch C2 is engaged under the second speed change state in which the second gear 62a (second speed gear ⁇ IJ) is fixed to the first motor shaft 46 by the clutch C2.
  • the sun gear 41 which is the second element of the power distribution and integration mechanism 40
  • the carrier 45 which is the first element
  • the state (Fig. 5) is called "2-3rd gear simultaneous engagement state”.
  • the clutch C2 is disengaged under the 2nd-3rd gear simultaneous engagement state shown in FIG. 5
  • the third gear 63a is driven by the clutch C1 as shown in FIG.
  • the fourth gear is set by the clutch C2 under the third shift state in which the third gear 63a (third speed gear ⁇ IJ) is fixed to the carrier shaft 45a by the clutch C1. If the gear 64a (4-speed gear train) is fixed to the first motor shaft 46 and the torque command for the motors MG1 and MG2 is set to the value 0, the power (torque) from the engine 22 is transferred to the electric energy.
  • the fixed (constant) transmission ratio (the transmission ratio of the third gear train and the transmission gear ratio of the fourth gear train) is different from the two-speed simultaneous engagement state and the two-third simultaneous engagement state.
  • the force S can be transmitted mechanically (directly) to the drive shaft 67 at a value between
  • the carrier 45 which is the first element of the power distribution and integration mechanism 40, is connected to the drive shaft 67 by the third-speed gear train of the transmission 60
  • the sun gear 41 which is the second element
  • This state (Fig. 7) is called "3-4th gear simultaneous engagement state”.
  • the carrier 45 of the power distribution and integration mechanism 40 is used as an output element.
  • the motor MG2 connected to the carrier 45 functions as an electric motor, and the motor MG1 and MG2 can be driven and controlled so that the motor MG1 connected to the sun gear 41 as a reaction force element functions as a generator. It becomes possible.
  • the power distribution and integration mechanism 40 distributes the power from the engine 22 input through the ring gear 42 to the sun gear 41 side and the carrier 45 side according to the gear ratio ⁇ , and from the engine 22.
  • the power from the motor MG2 that functions as an electric motor is integrated and output to the carrier 45 side.
  • FIG. 9 shows an example of a collinear diagram showing the relationship between the rotational speed and torque of each element of the power distribution and integration mechanism 40 and each element of the reduction gear mechanism 50 in the first torque conversion mode.
  • the S axis, R axis, and C axis are the same as those shown in FIGS. 2 to 8, the 54 axis is the speed of the carrier 54 of the reduction gear mechanism 50, and the 51 axis is the sun gear of the reduction gear mechanism 50.
  • P is the gear ratio of the power distribution and integration mechanism 40 (number of teeth of sun gear 41 / number of teeth of ring gear 42)
  • pr is The reduction gear ratio of the reduction gear mechanism 50 (the number of teeth of the sun gear 51 / the number of teeth of the ring gear 52), and the thick arrow on each axis indicate the torque acting on the corresponding element.
  • the rotation speeds on the S, R, and C axes are positive values above the 0 axis (horizontal axis) and negative values below the S axis, R axis, and C axis.
  • the tone at is positive when the arrow is upward in the figure and negative when the arrow is downward in the figure.
  • the rotation speed on 51 axis is lower than 0 axis (horizontal axis)
  • the torque at axis 51 is positive when the arrow is pointing downward in the figure and negative when the arrow is pointing upward in the figure.
  • the symbols indicating the rotational speed and torque are all scalar values (the same applies to FIGS. 2 to 8, 10 and 11).
  • the sun gear 41 of the power distribution and integration mechanism 40 is an output element.
  • the motor MG1 connected to the sun gear 41 functions as an electric motor, and the motor MG1 and MG2 are controlled so that the motor MG2 connected to the carrier 45 serving as a reaction force element functions as a generator. Is possible.
  • the power distribution and integration mechanism 40 distributes the power from the engine 22 input via the ring gear 42 to the sun gear 41 side and the carrier 45 side according to the gear ratio p, and the power from the engine 22 is also distributed.
  • FIG. 10 shows an example of a collinear diagram showing the relationship between the rotational speed and torque in each element of the power distribution and integration mechanism 40 and each element of the reduction gear mechanism 50 in the second torque conversion mode.
  • the first torque conversion mode and the second torque conversion mode are alternately switched in accordance with the change in the gear ratio (shift state) of the transmission 60.
  • the rotational speed Nm2 or Nml of the motor MG2 or MG1 functioning as an electric motor increases, the rotational speed Nml or Nm2 of the motor MG1 or MG2 functioning as a generator can be prevented from becoming a negative value. Therefore, in the hybrid vehicle 20, the motor MG 2 generates power using a part of the power output to the carrier shaft 45 a when the rotational speed of the motor MG 1 becomes negative under the first torque conversion mode.
  • the power generated by the motor MG2 is consumed by the motor MG1 and the power is output.
  • the motor MG1 generates power using a part of the power output to the first motor shaft 46 as the rotational speed of the motor MG2 becomes negative under the ring or the second torque conversion mode, and the motor MG1
  • the motor MG2 consumes the generated power and outputs the power! /
  • the motors MG1 and MG2 can be downsized.
  • the power from the engine 22 is mechanically transmitted at a gear ratio specific to each of the above-described 1st and 2nd speed simultaneous engagement state, 2nd and 3rd speed simultaneous engagement state, and 3rd and 4th speed simultaneous engagement state. (Directly) can be transmitted to the drive shaft 67, increasing the opportunity to mechanically output power from the engine 22 to the drive shaft 67 without conversion to electric energy, and more widely Power S can be further improved in the operating range.
  • the engine power is electric when the reduction ratio between the engine and the drive shaft is relatively large.
  • the simultaneous engagement mode described above is particularly effective for the deceleration between the engine 22 and the drive shaft because the power transfer efficiency deteriorates and the motor MG1 and MG2 tend to generate heat because it is converted more by the work energy. This is advantageous when the ratio is relatively large.
  • the simultaneous engagement mode is temporarily executed between the first torque conversion mode and the second torque conversion mode when the transmission state of the transmission 60 is changed. There is no so-called torque loss when the ratio is changed, and the change of the gear ratio, that is, the switching between the first torque conversion mode and the second torque conversion mode can be executed extremely smoothly and without shock.
  • the motor travel mode is such that the clutch engagement 1 motor travel mode in which power is output to one of the motors MG1 and MG2 while the clutch CO is connected, and the motor is operated with the clutch CO released.
  • Clutch disengagement that outputs power to either MG1 or MG2. 1 Motor running mode and clutch CO in disengaged state, motor MG1 and The power from both the MG2 and the MG2 can be used.
  • the third gear 63a of the third gear train is fixed to the carrier shaft 45a, and the force that outputs power only to the motor MG2, the clutch C1 of the transmission 60 is released, and the clutch C2
  • the second gear 62a or the fourth gear 64a of the fourth gear train is fixed to the first motor shaft 46, and only the motor MG1 outputs power.
  • Force, clutch release 1 Under the motor running mode, the clutch CO is released and the connection between the sun gear 41 and the first motor shaft 46 is released as shown by the one-dot chain line and the two-dot chain line in FIG.
  • the gear ratio (transmission state) of the transmission 60 is set so that power is efficiently transmitted to the drive shaft 67. It can be easily changed.
  • the first gear 61a of the first gear train or the third gear 63a of the third gear train is fixed to the carrier shaft 45a by the clutch C1 of the transmission 60 and only the motor MG2 is used.
  • the speed of motor MG1, which was stopped when power is being output to the second gear train, is synchronized with the speed of second gear 62a in the second gear train or fourth gear 64a in the fourth gear train, and by clutch C2.
  • the above described first-second speed simultaneous engagement state, second-third speed simultaneous engagement state, and third-fourth speed simultaneous engagement state It is possible to shift to either one, that is, the two-motor running mode.
  • the clutch C1 of the transmission 60 is disengaged and power is output only to the motor MG1, the power output by the motor MG1 is converted to the second speed gear train or the fourth speed gear train of the transmission 60. Via the drive shaft 67.
  • the torque can be amplified by changing the rotation speed of the carrier shaft 45a and the first motor shaft 46 using the transmission 60 even in the motor running mode.
  • the maximum torque required for the motors MG1 and MG2 can be reduced, and the motors MG1 and MG2 can be reduced in size.
  • the simultaneous engagement state of the transmission 60 that is, the two-motor traveling mode is executed once, so that the so-called torque loss at the time of changing the transmission ratio is performed. This makes it possible to change gear ratios very smoothly and without shock. Note that if the required driving force increases under these motor driving modes or the remaining capacity SOC of the battery 35 decreases, power is not output according to the gear ratio of the transmission 60.
  • the engine 22 is cranked by the motor MG1 or MG2 and thus the engine 22 is started.
  • FIG. 12 is a flowchart showing an example of a two-motor driving control routine executed by the hybrid ECU 70 when the two-motor driving mode is selected.
  • This routine is performed when the clutch CO is in the disengaged state and the transmission 60 is set to the above-described 1st 2nd speed simultaneous engagement state, 2nd and 3rd speed simultaneous engagement state, or 3rd and 4th speed simultaneous engagement state. It is executed every predetermined time (for example, every several msec). Examples of cases where the two-motor travel mode is selected include starting the hybrid vehicle 20 on an uphill road (starting on a slope), or starting the hybrid vehicle 20 connected to a predetermined towing target. Can be mentioned.
  • the CPU 72 of the hybrid ECU 70 determines that the accelerator opening Acc from the accelerator pedal position sensor 84, the vehicle speed V from the vehicle speed sensor 87, the rotation speed Nml of the motors MG1 and MG2, Nm2, current transmission ratios ⁇ 1 and ⁇ 2, transmission / required power Pb *, and input / output limit for notch 35 Win, Wout, etc. Execute (Step S100).
  • the rotational speeds Nml and Nm2 of the motors MG1 and MG2 are input from the motor ECU 40 by communication.
  • the current gear ratio ⁇ 1 is obtained by connecting the carrier shaft 45a and the drive shaft 67 during the execution of the two-motor travel mode of the first speed gear train and the third speed gear train constituting the first speed change mechanism of the transmission 60.
  • the current transmission gear ratio ⁇ 2 is the second speed gear train that constitutes the second speed change mechanism of the transmission 60 and the second motor travel mode of the fourth speed gear train is being executed during execution of the two-motor travel mode. 1 Corresponds to one connecting the motor shaft 46 and the drive shaft 67, and a predetermined area of the RAM 76 when the carrier shaft 45a and the first motor shaft 46 and the drive shaft 67 are connected respectively.
  • the charge / discharge required power Pb * is input from the battery ECU 36 by communication from the battery ECU 36 as power to be charged / discharged by the battery ECU 36 based on the remaining capacity SOC of the battery 35 and the like.
  • the input limit Win as the charge allowable power that is the power allowed for charging the battery 35 and the output limit Wout as the discharge allowable power that is the power allowed for the discharge are detected by the temperature sensor 37. It is assumed that what is set based on the battery temperature Tb of the battery 35 and the remaining capacity SOC of the battery 35 is input from the battery ECU 36 via communication. Note that the input / output limits Win and Wout of the battery 35 are based on the battery temperature Tb.
  • the required torque Tr * to be output to the drive shaft 67 is set based on the input accelerator opening Acc and the vehicle speed V, and the request required for the entire hybrid vehicle 20 Set the power P * (step S110).
  • a demand torque setting map (not shown) that predetermines the relationship among the accelerator opening Acc, the vehicle speed V, and the required torque Tr * is stored in the ROM 74.
  • the required torque Tr * The one corresponding to the degree Acc and the vehicle speed V is derived and set from the map.
  • the required power P * is the product of the required torque Tr * set in step S110 and the vehicle speed V indicating the rotation speed of the drive shaft 67 multiplied by the conversion factor k and the charge / discharge request capacity. ⁇ ⁇ Calculated as the sum of Pb * (where the charge request side is positive) and loss Loss. Subsequently, for example, it is determined whether or not the engine 22 is to be stopped based on the required power P * set in step S110, the output limit Wout (or remaining capacity SOC) input in step S100, etc. ( Step S 120).
  • the temporary motor torque Tm2tmp is set as the torque to be output from the motor MG2 based on the required torque Tr * set in step S110. (Step S130).
  • the torques Tml and Tm2 of the motors MG1 and MG2 when the sum of the losses (copper losses) of the motors MG1 and MG2 of the same specification are almost minimized for each required torque Tr * are illustrated in FIG.
  • Such a temporary motor torque setting map is stored in the ROM 74.
  • step S130 the temporary motor torque setting map force and the torque Tm2 corresponding to the required torque Tr * set in step S110 are derived and set as the temporary motor torque Tm2tmp of the motor MG2.
  • the temporary motor torque setting map is created through experiments and analysis in consideration of the transmission ratio of the first and second transmission mechanisms of the transmission 60, the reduction ratio of the reduction gear mechanism 50, and the like.
  • the torque command Tm2 * of the motor MG2 is set with the maximum rated torque Tm2rat of the motor MG2 and the predetermined minimum output torque Tm2set (Tm2set ⁇ Tm2rat) as a value that limits the temporary motor torque Tm2tmp (step) S140).
  • Equation (1) can be easily derived using the nomogram of FIG. 11, and the motor with respect to the required torque Tr * when the motor MG2 outputs torque according to the torque command Tm2 * This is for determining the torque share of MG1.
  • step S160 If the torque commands Tml * and Tm2 * of the motors MG1 and MG2 are set in this way, the set torque commands Tml * and Tm2 * are transmitted to the motor ECU 40 (step S160), and the processing after step S100 is executed again. .
  • the motor ECU 40 that has received the torque commands Tml * and Tm2 * performs switching control of the switching elements of the inverters 31 and 32 so that the motors MG1 and MG2 are driven according to the torque commands Tml * and Tm2 *.
  • Tml * (Tr> K-Tm2> K / r- ⁇ 1) / ⁇ 2
  • step S120 If it is determined in step S120 that the engine 22 should be started, the routine is terminated and cranking of the engine 22 is executed using one of the motors MG1 and MG2. Therefore, a torque transfer routine (not shown) for transferring power from one of the motors MG1 and MG2 that does not correspond to the target gear ratio of the subsequent transmission 60 to the other is executed. After the torque transfer is completed, connect the motor MG1 or MG2 that does not correspond to the target gear ratio of the transmission 60 and the drive shaft 67 and connect the drive shaft 67 so that the clutch C 0 can be connected.
  • a torque transfer routine (not shown) for transferring power from one of the motors MG1 and MG2 that does not correspond to the target gear ratio of the subsequent transmission 60 to the other is executed. After the torque transfer is completed, connect the motor MG1 or MG2 that does not correspond to the target gear ratio of the transmission 60 and the drive shaft 67 and connect the drive shaft 67 so that the clutch C 0 can be connected.
  • step S110 when traveling under the two-motor traveling mode in which both the motors MG1 and MG2 are coupled to the drive shaft 67 by the transmission 60, step S110 is performed. Based on the required torque Tr * set in, the sum of the loss (copper loss) of motor MG1 and the loss (copper loss) of motor MG2 is minimized and required for drive shaft 67 Torque commands 13 ⁇ 411 * push 13 ⁇ 412 * for motors MG1 and MG2 are set so that power based on the desired torque Tr * is output (steps 3130 to 3150).
  • the heat generated by the motor MG1 and the heat generated by the motor MG2 can be basically made the same level. Accordingly, in the hybrid vehicle 20, the two motors MG1 and MG2 are controlled more appropriately, and either one of the motors MG1 and MG2 or the corresponding inverter 31 or 32 is suppressed from excessively generating heat. It is possible to obtain a relatively large torque continuously.
  • the power output device including the engine 22, the motors MG1 and MG2, the power distribution and integration mechanism 40, the transmission 60, and the like as in the embodiment the motive power is output to the drive shaft 67 when the engine 22 is operated.
  • the two-motor driving control routine of FIG. 12 can be applied to an electric vehicle in which the engine 22 and the power distribution and integration mechanism 40 are omitted from the power output device described above.
  • the power output apparatus mounted on the hybrid vehicle 20 of the embodiment is configured such that both the two motors MG1 and MG2 are connected to the drive shaft 67 by the transmission 60 to continuously apply a relatively large torque. Can be obtained. Therefore, the hybrid vehicle 20 can further improve the climbing performance, towing performance, and the like during motor running using the motors MG1 and MG2.
  • the transmission 60 of the embodiment includes a first-speed gear train and a third-speed gear train that are parallel shaft gear trains capable of connecting the carrier 45 as the first element of the power distribution and integration mechanism 40 to the drive shaft 67.
  • a second speed change mechanism having a second speed gear train and a second speed gear train that are parallel shaft gear trains capable of connecting the first motor shaft 46 of the motor MG1 to the drive shaft 67.
  • This is a parallel shaft type speed changer. Therefore, according to the transmission 60, it is possible to selectively connect one or both of the first motor shaft 46 and the carrier 45 (motor MG2) of the motor MG1 to the drive shaft 67.
  • a planetary gear type transmission may be employed instead of the parallel shaft type speed changer 60.
  • FIG. 14 shows a planetary gear type transmission applicable to the hybrid vehicle 20 of the embodiment.
  • the transmission 100 shown in the figure is also capable of setting the gear ratio (shift state) in multiple stages, and the carrier 45 (the carrier shaft 45a), which is the first element of the power distribution and integration mechanism 40, is connected to the drive shaft 67.
  • the first planetary gear mechanism 110 for first speed change
  • the planetary gear mechanism 120 for second speed change capable of connecting the first motor shaft 46 of the motor MG1 to the drive shaft 67
  • the planetary gear mechanism 110 for first speed change.
  • Brake B1 first fixing mechanism
  • brake B2 second fixing mechanism
  • brake B3 third fixing mechanism
  • clutch C1 shift connection / disconnection
  • the first speed change planetary gear mechanism 110 and the brake B1 constitute the first speed change mechanism of the transmission 100
  • the second speed change planetary gear mechanism 120 and the brake B2 constitute the second speed change mechanism of the transmission 100.
  • the planetary gear mechanism 110 for first speed change includes a sun gear 111 connected to the carrier shaft 45a, a ring gear 112 of an internal gear arranged concentrically with the sun gear 111, a sun gear ( This is a single pinion type planetary gear mechanism having a carrier 114 (output element) connected to the drive shaft 67 and holding a plurality of pinion gears 113 that mesh with both the input element 111 and the ring gear (fixable element) 112.
  • the planetary gear mechanism 120 for the second speed change includes a sun gear (input element) 121 connected to the first motor shaft 46 and an internal gear ring gear (fixable element) arranged concentrically with the sun gear 121.
  • This is a single-pinion type planetary gear mechanism having a first shift planetary gear mechanism 110 that holds a plurality of pinion gears 123 that mesh with both the sun gear 121 and the ring gear 122 and a common carrier (output element) 114.
  • the second speed change planetary gear mechanism 120 is arranged side by side so as to be coaxial with the first speed change planetary gear mechanism 110 and located in front of the vehicle.
  • Gear ratio p 2 of gear mechanism 120 (the number of teeth of sun gear 121 / the number of teeth of ring gear 122) is the gear ratio of planetary gear mechanism 110 for the first speed change (the number of teeth of sun gear 111 / the number of teeth of ring gear 112). It is set slightly larger than 1.
  • the brake B1 is a force S that can fix the ring gear 112 of the planetary gear mechanism 110 for the first speed change to the transmission case in a non-rotatable manner and release the ring gear 112 to be rotatable. It is driven by an electromagnetic or hydraulic actuator.
  • the brake B2 fixes the ring gear 122 of the second shifting planetary gear mechanism 120 to the transmission case so as not to rotate, and The gear 122 can be released to be freely rotated, and is driven by an electric, electromagnetic or hydraulic actuator (not shown).
  • the brake B3 fixes the first motor shaft 46, that is, the sun gear 41, which is the second element of the power distribution and integration mechanism 40, to the transmission case through the stator 130 fixed to the first motor shaft 46 so as not to rotate.
  • the first motor shaft 46 can be rotated by releasing the stator 130, and is driven by an electric, electromagnetic or hydraulic actuator (not shown).
  • the clutch C1 is capable of executing connection and release of the carrier 114, which is the output element of the planetary gear mechanism 110 for the first speed change, and the ring gear 112, which is a fixable element. It is driven by an electromagnetic or hydraulic actuator.
  • the transmission 100 configured as described above can reduce the axial and radial dimensions as compared with, for example, a parallel shaft transmission.
  • the planetary gear mechanism 110 for the first speed change and the planetary gear mechanism 120 for the second speed change can be arranged coaxially with these on the downstream side of the engine 22, the motors MG 1 and MG2, and the power distribution and integration mechanism 40.
  • the speed change state can be set in a plurality of stages as follows. That is, if the ring gear 112 of the first speed change planetary gear mechanism 110 is fixed to the transmission case by the brake B1, the power from the carrier shaft 45a is changed to the gear ratio p of the first speed change planetary gear mechanism 110. It is possible to shift the gear at a gear ratio 1 / (1 + p 1)) based on 1 and transmit it to the drive shaft 67 (this state is referred to as “first gear shift state (1st gear)”).
  • the ring gear 122 of the second speed change planetary gear mechanism 120 is fixed to the transmission case by the brake B2, the power from the first motor shaft 46 is transmitted to the gear ratio of the second speed change planetary gear mechanism 120.
  • the gear can be shifted to the drive shaft 67 with a gear ratio based on p 2 (p 2 / (1 + P 2)) (this state is referred to as “second gear state (second speed)”).
  • second gear state second speed
  • the carrier 114 of the first speed change planetary gear mechanism 110 and the ring gear 112 are connected by the clutch C1, the sun gear 111, the ring gear 112, and the carrier 114 constituting the first speed change planetary gear mechanism 110 are substantially locked.
  • the power from the carrier shaft 45a can be transmitted to the drive shaft 67 at a gear ratio of 1 (this state is referred to as “third change”).
  • Speed state (3rd speed) both the carrier shaft 45a and the first motor shaft 46 are driven if the ring gear 122 is fixed by the brake B2 constituting the second speed change mechanism in the first speed change state.
  • the power from the engine 22 or the power from at least one of the motors MG1 and MG2 can be mechanically (directly) transmitted to the drive shaft 67 at a fixed gear ratio by being connected to the shaft 67 (this state) Is called “1–2nd gear simultaneous engagement state”).
  • the carrier shaft 45a and the first motor shaft Both of them can be connected to the drive shaft 67, and the power from the engine 22 or the power from at least one of the motors MG1 and MG2 is mechanically driven at a fixed gear ratio different from the above-mentioned first and second speed simultaneous engagement states. It is possible to transmit directly (directly) to the drive shaft 67 (this state is referred to as “two-third speed simultaneous engagement state”).
  • the first motor shaft 46 that is, the second element of the power distribution and integration mechanism 40
  • the stator 130 fixed to the first motor shaft 46 by the brake B3. If it is fixed to the case so that it cannot rotate, the power from the engine 22 and motor MG2 is mechanically (directly) at a fixed gear ratio different from the above-mentioned 1 2nd speed simultaneous engagement state and 2nd and 3rd speed simultaneous engagement state. Can be transmitted to the drive shaft 67 (this state is referred to as “three-speed fixed state”).
  • the planetary gear type transmission 100 is employed, the same effects as those obtained when the parallel shaft type transmission 60 is used can be obtained.
  • FIG. 15 is a schematic configuration diagram showing another planetary gear type speed changer 200 applicable to the hybrid vehicle 20 of the embodiment.
  • the transmission 200 shown in the figure is also capable of setting a gear ratio (shift state) in a plurality of stages, and includes a transmission differential rotation mechanism (deceleration means) 201 and clutches C11 and C12.
  • the transmission differential rotation mechanism 201 includes a sun gear 202 that is an input element, a ring gear 203 that is fixed to the transmission case so as to be non-rotatable and is arranged concentrically with the sun gear 202, and both the sun gear 202 and the ring gear 203.
  • Clutch C11 is connected to first engagement portion 211 provided at the tip of first motor shaft 46, second engagement portion 212 provided on carrier shaft 45a, and sun gear 202 of transmission differential rotation mechanism 201.
  • Provided on the connected hollow sun gear shaft 202a It can be engaged with both the third engagement portion 213, the first engagement portion 211, and the third engagement portion 213, and can move in the axial direction of the first motor shaft 46, the carrier shaft 45a, etc.
  • the first movable engagement member 2 14 and the second movable engagement member 215 are driven by an electric, electromagnetic or hydraulic actuator (not shown), respectively, and the first movable engagement member 214 and the second movable engagement member 215 is appropriately driven, and either one or both of the first motor shaft 46 and the carrier shaft 45a can be selectively coupled to the sun gear 202 of the transmission differential rotation mechanism 201.
  • the clutch C12 includes a first engagement portion 221 provided at the tip of a hollow carrier shaft 205a that is connected to the carrier 205 as an output element of the transmission differential rotation mechanism 201 and extends rearward of the vehicle, and a sun gear shaft. 202a and the second engagement portion 222 provided on the carrier shaft 45a extending through the carrier shaft 205a, the third engagement portion 223 provided on the drive shaft 67, the first engagement portion 221 and the third engagement A first movable engagement member 224 that can be engaged with both the portion 223 and is movable in the axial direction of the first motor shaft 46, the carrier shaft 45a, etc., a second engagement portion 222, and a third portion And a second movable engaging member 225 that is engageable with both of the engaging portions 223 and is movably disposed in the axial direction.
  • the first movable engagement member 224 and the second movable engagement member 225 are driven by an electric, electromagnetic or hydraulic actuator (not shown), respectively, and the first movable engagement member 224 and the second movable engagement member 225 are driven.
  • an electric, electromagnetic or hydraulic actuator not shown
  • either one or both of the carrier shaft 205a and the carrier shaft 45a can be selectively coupled to the drive shaft 67.
  • the shift state can be set in a plurality of stages as follows. That is, if the carrier shaft 45a is connected to the sun gear 202 of the transmission differential rotation mechanism 201 by the clutch C11 and the carrier shaft 205a is connected to the drive shaft 67 by the clutch C12, the power from the carrier shaft 45a is transmitted to the transmission differential gear.
  • the speed can be changed at a speed ratio based on the gear ratio of the rotation mechanism 201 and transmitted to the drive shaft 67 (this state is referred to as “first speed state (first speed)”).
  • first motor shaft 46 is connected to the sun gear 202 of the transmission differential rotation mechanism 201 by the clutch C11 and the carrier shaft 205a is connected to the drive shaft 67 by the clutch C12, the first motor shaft 46 is connected to the drive shaft 67.
  • second gear state second speed
  • both the carrier shaft 45a and the first motor shaft 46 are connected to the drive shaft 67 by the clutch C11, and the carrier shaft 205a is connected to the drive shaft 67 by the clutch C12, the engine 22 Power or the power from at least one of the motors MG1 and MG2 can be mechanically (directly) transmitted to the drive shaft 67 at a fixed gear ratio (this state is referred to as “1 2-speed simultaneous engagement”). State "). Further, if both the carrier shaft 45a and the first motor shaft 46 are connected to the drive shaft 67 by the clutch C11 and the carrier shaft 45a is connected to the drive shaft 67 by the clutch C12, the above-mentioned 1st and 2nd speed simultaneous engagement state is described.
  • the power from the engine 22 or the power from at least one of the motors MG1 and MG2 can be mechanically (directly) transmitted to the drive shaft 67 at different fixed gear ratios (this state is described in “2-3 "Simple simultaneous engagement state”). Furthermore, if the sun gear 41, which is the second element of the first motor shaft 46, that is, the second element of the power distribution and integration mechanism 40, is fixed to the transmission case in a non-rotatable state by the brake (not shown) under the third speed change state. 1 Power from the engine 22 and motor MG2 can be mechanically (directly) transmitted to the drive shaft 67 at a fixed gear ratio different from the two-speed simultaneous engagement state and the two-third simultaneous engagement state. (This state is called “3-speed fixed state”). Thus, even when the planetary gear type transmission 200 is employed, the same operational effects as those obtained when the parallel shaft type transmission 60 is used can be obtained.
  • FIG. 16 is a schematic configuration diagram showing a modified hybrid vehicle 20A.
  • the hybrid vehicle 20 described above is configured as a rear wheel drive vehicle, whereas the hybrid vehicle 20A of the modified example is configured as a front wheel drive vehicle.
  • the hybrid vehicle 20 A includes a sun gear 11, a ring gear 12 disposed concentrically with the sun gear 11, and a carrier 14 that holds a plurality of pinion gears 13 that mesh with both the sun gear 11 and the ring gear 12.
  • a power distribution and integration mechanism 10 which is a single pinion type planetary gear mechanism.
  • the engine 22 is placed horizontally and the engine 22
  • the crankshaft 26 is connected to the carrier 14 as the third element of the power distribution and integration mechanism 10.
  • a hollow ring gear shaft 12a is connected to the ring gear 12 which is the first element of the power distribution and integration mechanism 10.
  • the reduction gear mechanism 50A which is a parallel shaft type gear train and the first motor shaft are connected to the ring gear shaft 12a.
  • the motor MG2 is connected via a second motor shaft 55 extending in parallel with 46.
  • On the ring gear shaft 12a either the first speed gear train (gear 61a) or the third speed gear train (gear 63a) constituting the first speed change mechanism of the transmission 60 is selectively fixed by the clutch C1. I can help.
  • a sun gear shaft 11a is connected to the sun gear 11 as the second element of the power distribution and integration mechanism 10, and this sun gear shaft 11a is connected to the clutch CO through a hollow ring gear shaft 12a.
  • Motor shaft 46 that is, can be connected to motor MG1.
  • the first motor shaft 46 is provided with either the second speed gear train (gear 62a) or the fourth speed gear train (gear 64a) that constitutes the second speed change mechanism of the transmission 60 using the clutch C2.
  • the hybrid vehicle according to the present invention may be configured as a front-wheel drive vehicle! /.
  • the power distribution and integration mechanism 40 which is a double pinion planetary gear mechanism, may be configured such that the gear ratio thereof is p> 0.5.
  • the reduction ratio may be configured to be a value in the vicinity of (1 ⁇ P) / P and may be disposed between the sun gear 41 and the motor MG1 or MG2.
  • the power distribution and integration mechanism provided in the hybrid vehicle 20 includes a first sun gear and a second sun gear having different numbers of teeth, a first pinion gear that meshes with the first sun gear, and a second sun gear that meshes with the first sun gear. It may be a planetary gear mechanism including a carrier that holds at least one stepped gear formed by connecting a two-pinion gear.
  • the clutch CO is provided between the sun gear 41 as the second element of the power distribution and integration mechanism 40 and the motor MG1 as the second electric motor, and executes connection and release of the two.
  • the carrier 45 which is the first element of the power distribution and integration mechanism 40
  • the motor MG2 as the first electric motor to execute the connection and release of both.
  • the third element of the distribution integration mechanism 40 It may be provided between the ring gear 42 and the crankshaft 26 of the engine 22 to execute connection and release of both.
  • the hybrid vehicles 20, 20A may each be configured as a four-wheel drive vehicle having a rear wheel drive base! /.
  • the power output device described as being mounted on the hybrid vehicle 20, 2 OA, the power output device according to the present invention is applied to a moving body such as a vehicle other than an automobile, a ship, and an aircraft. It may be installed in a fixed facility such as a construction facility.
  • the present invention can be used in the power output apparatus, the automobile manufacturing industry, and the like.

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  • Engineering & Computer Science (AREA)
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  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

Lorsqu'un dispositif automobile hybride (20) se déplace en mode d'entraînement à deux moteurs, dans lequel les deux moteurs (MG1, MG2) sont connectés à un arbre (67) d'entraînement par une transmission (60), un couple demandé (Tr*) est établi au cours de l'étape S110 et, en fonction du couple demandé, des commandes de couple (Tm1*, Tm2*) pour les moteurs (MG1, MG2) sont établies (étapes S130-S150) de manière que la somme de la perte du moteur (MG1) et la perte du moteur (MG2) soit minimale et que la puissance associée au couple demandé (Tr*) soit transmise à l'arbre (67) d'entraînement.
PCT/JP2007/072064 2006-11-22 2007-11-14 Dispositif de sortie de puissance, véhicule automobile équipé d'un dispositif de sortie de puissance et procédé de commande du dispositif de sortie de puissance WO2008062696A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT07831794T ATE527150T1 (de) 2006-11-22 2007-11-14 Leistungsabgabevorrichtung, kraftfahrzeug mit der leistungsabgabevorrichtung und verfahren zur steuerung der leistungsabgabevorrichtung
EP07831794A EP2088045B1 (fr) 2006-11-22 2007-11-14 Dispositif de sortie de puissance, vehicule automobile equipe d'un dispositif de sortie de puissance et procede de commande du dispositif de sortie de puissance
US12/515,881 US7931102B2 (en) 2006-11-22 2007-11-14 Power output apparatus, vehicle equipped with power output apparatus, and control method of power output apparatus
CN2007800435092A CN101541611B (zh) 2006-11-22 2007-11-14 动力输出装置、具有该动力输出装置的汽车以及动力输出装置的控制方法

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JP2006-315465 2006-11-22
JP2006315465A JP4229173B2 (ja) 2006-11-22 2006-11-22 動力出力装置、それを備えた自動車、および動力出力装置の制御方法

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WO2008062696A1 true WO2008062696A1 (fr) 2008-05-29

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US (1) US7931102B2 (fr)
EP (1) EP2088045B1 (fr)
JP (1) JP4229173B2 (fr)
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AT (1) ATE527150T1 (fr)
WO (1) WO2008062696A1 (fr)

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ATE527150T1 (de) 2011-10-15
US7931102B2 (en) 2011-04-26
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